package mystringbuilder;

import java.awt.*;
import java.util.Arrays;

/**
 * @author small瑞
 */
public class TestAll {
    public static void main(String[] args) {
        MyStringBuilder sb = new MyStringBuilder(123456789);
        sb.replace(2,5,"傻逼");
        System.out.println(sb);
    }
}
